Identification of a Two-Coordinate Iron(I)–Oxalate Complex

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Martin Mayer - , Universität Leipzig (Autor:in)
  • Nina Vankova - , Professur für Theoretische Chemie (Autor:in)
  • Ferdinand Stolz - , Leibniz-Institut für Oberflächenmodifizierung (Autor:in)
  • Bernd Abel - , Universität Leipzig, Leibniz-Institut für Oberflächenmodifizierung (Autor:in)
  • Thomas Heine - , Professur für Theoretische Chemie, Helmholtz-Zentrum Dresden-Rossendorf, Yonsei University (Autor:in)
  • Knut R. Asmis - , Universität Leipzig (Autor:in)

Abstract

Exotic oxidation states of the first-row transition metals have recently attracted much interest. In order to investigate the oxidation states of a series of iron–oxalate complexes, an aqueous solution of iron(III) nitrate and oxalic acid was studied by infrared free liquid matrix-assisted laser desorption/ionization as well as ionspray mass spectrometry. Here, we show that iron is not only detected in its common oxidation states +II and +III, but also in its unusual oxidation state +I, detectable in both positive-ion and in negative-ion modes, respectively. Vibrational spectra of the gas phase anionic iron oxalate complexes [FeIII(C2O4)2], [FeII(C2O4)CO2], and [FeI(C2O4)] were measured by means of infrared photodissociation spectroscopy and their structures were assigned by comparison to anharmonic vibrational spectra based on second-order perturbation theory.

Details

OriginalspracheEnglisch
Aufsatznummere202117855
FachzeitschriftAngewandte Chemie - International Edition
Jahrgang61
Ausgabenummer16
PublikationsstatusVeröffentlicht - 11 Apr. 2022
Peer-Review-StatusJa

Externe IDs

PubMed 35088489

Schlagworte

ASJC Scopus Sachgebiete

Schlagwörter

  • IR-FL-MALDI, Iron Complexation, Iron(I), IRPD Spectroscopy, Unusual Oxidation State